Starting means for motor-vehicles.



LUSLSSQ.

R. HUPP.

STARTING MEANS FOR MOTOR VEHICLES.

APPLICATION FILED NOV.30, 1907.

Patented Dec. 16, 1913.

UNITE TAS ATNT FFTQE.

RUSSELL HUFF, OF- DETROIT, MICHIGAN, ASSIGNOR, BY MESNE ASSIGNMENTS, TO PACKARD MOTOR CAR COMPANY, 013 DETROIT, MICHIGAN, A CORPORATION OF MICHIGAN.

STARTING MEANS FOR MOTOR-VEHICLES.

Application filed November 30, 1907.

To all whom it may concern:

Be it known that I, RUSSELL Herr, a citizen of the United States, and resident of Detroit, Wayne county, State of Miehigan, have invented new and useful Improvements in Starting Means for Motor-Ye hicles, of which the following is a speclfication.

This invention relates to controlling mechanism for motor vehicles which are driven by hydrocarbon engines and more particularly to means for opening the throttle and retarding the spark when starting the motor and automatically advancing the spark and closing the throttle'as the engine increases its speed.

The invention also includes other features relating to the control of the motor which will be pointed out in the following specilication.

Referring to the accompanying drawing, Figure 1 is a side elevation of so much of the motor vehicle as is necessary to illustrate the invention; Fig. 2 is a plan view of certain parts shown in Fig. 1; Fig. 3 is a diagrammatic view of the circuit closer; Fig. 4 is a sectional view of the throttle valves.

Referring to the drawing, 1 indicates the body of the motor vehicle, 2 the dash-board, 3, 3 the cylinder casings of a multiple cylin dcr hydrocarbon engine, 4 the mixture inlet pipe, and 5, the branches of said pipe leading to the cylinders. Within the mixture inlet pipe is a throttle valve 6 which is connccted with the accelerator pedal 7 by means of an arm 8 and rod 9. Extending forward from the dash 2 is the usual casing or hood C which incloses the engine and other mechanism associated with the engine at the forward end of the vehicle. The pedal 7 is normally held in elevated position and the valve 6 closed by a spring 10. A by-pass 11 permits sutficient mixture to pass around the valve 6 to operate the engine under normal speeds. while the valve is closed. In the inlet pipe 4 is a second throttle valve 12 to which is connected an arm 13. The valve 12 is normally held in its open position by means of a spring 14. The valve 12 is operated automatically by a governor G to which it is connected by means of a lever 15 and red 16, the rod having a pin-and-slot connection with the valve. The governor is also connected with an arm 17 on a rock- Specifieation of Letters Patent.

Patented Dec. 16, 1913. Serial N 0. 404,523.

ing post 18 for the purpose of adjusting the circuit closer 19. As shown, the rod 16 and lever 15 are used as common connections between the governor, the throttle valve 12 and the circuit closer 19. It will be seen that as the speed of the engine increases the governor will rock the lever 15 and first adjust the circuit closer to advance the spark and then close the throttle valve. For practical purposes it is important that the spark should be advanced before closing the throttle valve when the engine is running and it is also important in starting the engine that the valve should be open and the spark retarded, both of which objects are attained by the present invention.

It is found that the governor sometimes sticks when the engine is stopped and fails to open the throttle valve and retard the spark. In order to avoid any back kick from this cause in starting the engine, I arrange to positively return the governor and its connected parts to their normal stationary positions while moving the starting crank into engagement with the engine. As shown, the starting crank 20 is mounted to turn and slide in suitable bearings 21 and a spring 25 tends to normally disengage its clutch member 22 from the clutch member 23 of the engine shaft 2 1. A lever 26 is pivoted at 27 to a part of the frame of the vehicle and the free end 28 of the lever 26 is arranged to bear upon the reciprocating part 29 of the governor G when the lever is moved toward the governor. At an intermediate point a yoke 30 on the lever 26 engages an annular groove 81 on the starting crank 20. The parts are so arranged that when the starting crank is disengaged from the motor shaft the lever 28 is disengaged from the governor stem 29. as shown in dotted lines in Fig. 2. When the starting crank is moved to engage the clutch members the lever 28 positively engages the governor stem 29. if the governor has failed to withdraw the stem properly. and forces the governor partsto their normal inoperative position, at the same time opening the throttle valve 12 wide and moving the arm 17 to retard the spark. On releasing the starting crank 20 the spring 25 disengages the clutches 22, 23 and moves the lever 26 away from the governor leaving the latter free to operate automatically. It will thus be seen that I have arranged for positively adjusting the circuit closer and the throttle valve to prevent any back kick of the motor when cranking and at the same time have also arranged to leave the governor free to control the spark and the throttle valve when the engine is running. It will also be seen that the governor control is automatic and independent of the control exercised through the accelerator pedal.

It will be noted that the spring 14 does not offer any resistance to the movement of the governor until the latter has effected the advancement of the spark to a certain extent. This is important as it is desirable that the spark should be advanced promptly as the engine starts. As soon as the throttle valve 12begins to open the spring 14L acts as an additional restraining means upon the governor, serving to render its action more sluggish. The feature of increasing the spring resistance on the governor after the spark has been advanced is a very desirable one.

Having described my invention what 1 claim and desire to secure by Letters Patent is,

1. In controlling means for motor vehicles, the combination with a throttle valve,

a circuit closer and a governor, of connections whereby the throttle valve may be closed and the spark advanced automatically by the governor, a starting crank, and means connected with the starting crank for opening the throttle valve and retarding the spark.

2. In controlling means for motor vehicles, the combination with a throttle valve, a circuit closer and a governor, of connections whereby the throttle valve may be closed and the spark advanced automatically by the governor, a starting crank, and means connected with the starting crank for positively restoring the governor to normal inoperative position when cranking the engme.

3. In controlling means for motor vehicles, the combination with a throttle valve, 1

a circuit closer and a governor, of connections whereby the throttle valve may be closed and the spark advanced automatically by the governor, a starting crank, and means operated by the starting crank for positively opening the throttle valve, retarding the spark and restoring the governor to its normal inoperative position.

4. In controlling means for motor vehicles, the combination with a governor and with a starting crank, of intermediate connections whereby the governor is positively restored to normal inoperative position in moving the starting crank to engage the engme.

5. In controlling means for motor vehicles, the combination with a circuit closer, a

governor, and a connection between the governor and circuit closer, of a throttle valve, a spring connected to the throttle valve, and connections between said spring and the governor whereby the spring comes into action to retard the movement of the governor after the governor has partly shifted the circuit closer, for the purpose set forth.

6. In controlling means for motor vehicles, the combination with a circuit closer, a governor and a connection between the governor and circuit closer adapted to advance the spark as the speed of the engine increases, of a throttle valve, a spring connected to the throttle valve to hold the same normally in a given position, and a loose or pin-and-slot connection between the governor and said throttle valve, whereby the governor is caused to shift the throttle valve against the tension of said spring after it has moved the circuit closer to partially advance the spark.

i 7. In controlling means for motor vehicles, the combination with a circuit closer, a governor and a connection between the governor and circuit closer, of a throttle valve, a spring connected to the throttle valve and adapted to hold the same normally open, and connections between said spring and the governor whereby the spring comes into action to retard the movement of the governor after the governor has partly shifted the circuit closer, for the purpose set forth.

8, In a controlling mechanism for motor vehicles, the combination with an engine of a governor therefor, a starting crank at the front end of the vehicle, and means at the front end of the vehicle for restoring the governor to inoperative position.

9. In a throttle valve mechanism for antomobiles, the combination with the engine, of a throttle valve controlling the supply of motive fluid thereto, cranking mechanism outside the automobile, and connections leading from said throttle to a point adjacent to said cranking mechanism.

10. In a throttle valve mechanism for au tomobiles, the combination with the engine, of a throttle valve controlling the supply of motive fluid thereto, cranking mechanism outside the automobile, a rod leading to a point adjacent to said cranking mechanism, and connections between said rod and said throttle valve.

11. In a throttle valve mechanism for automobiles, the combination with the engine and the casing inclosing same both at the front end of the automobile, of a throttle valve controlling the supply of motive fluid thereto, cranking mechanism at the forward end of said casing, and connections leading mechanism.

' 12. In a throttle valve mechanism for automobiles, the combination with an engine and a casing inclosing same both at the front end of the automobile, of a throttle valve controlling the supply of motive fluid thereto,'cranking mechanism at the forward end of said casing, a rod connected up to said throttle valve, and extending through an opening in said casing.

13. In a throttle valve mechanism for automobiles, the combination With an engine and a casing inclosing same both at the front end of the automobile, of a throttle valve controlling the supply of motive fluid thereto, a cranking mechanism at the for- Ward end of said casing, and a rod connected to said throttle valve and extending through an opening formed in the front end I motive fluid thereto, connections from said throttle valve to a point Within the automobile, and an auxiliary throttle control operative from a point Without said automobile.

In testimony whereof I aifix my signature in presence of tWo Witnesses.

RUSSELL HUFF. Witnesses 1 MILTON TIBBETTS, CLARA I. DALE. 

